martin luther king jr. and this time it was the president who seemed to swallow a word. >> the office of the president of the united states and will. >>reporter: then the president address. shy of 19 minutes. when the theme of moving forward together. >> my fellow americans we are made for this moment and we will see that so long as we seize it together. together. together. >>reporter: first president ever to include gay in his inaugural while talking about the struggle for civil rights. >> for if we are truly created equal then surely the love we dmoyt one another must be equal as well. >>reporter: president insisting we address climate change and immigration arguing we should welcome striving immigrants. >> until bright young students and engineers are listed in our work force rather than expelled from our country there. were powerful performances. kelly clarkson stirring rendition of my country 'tis of thee. ♪ [ singing]. >>reporter: beyonce returning 4 years later this time to sing the national anthem